Device for cooling milk



2 Sheets-Sheet 1.

(No Model.)

J W WAGNER DEVICE FOR 000mm MILK.

N0.'.408,943.. Patented Aug 13,, 1889.

ATTORNEY N. Patna PMbl-ilhognphor, wmhm von. D464 2 Sheets-Sheet 2..

(No Model.)

J. W. WAGNER- DEVIGE FOR COOLING MILK.

Pate-fused Aug. 13-, 1889.

' W/T/VfSSES:

ATTORNEY N/ PETERS. l moum gm, Washington. a, c

UNITED STATES PATENT OFFICE.

JOHN IV. IVAGNER, OF DARIEN, \VISCONSIN.

DEVICE FOR COOLING MILK.

SPECIFICATION forming part of Letters Patent No. 408,943, dated August 13, 1889.

Application filed January 7, 1889. Serial No. 296,672. (No model.)

To all whom it may concern.-

Be it known that I, JOHN WV. IVAGNER, of Darien, in the county of VValworth and State of \Visconsin, have invented a new and Improved Device for Cooling Milk, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved device adapted to be alternately used for cooling milk delivered in a heated condition, and for heating a building, or for other purposes.

The invention consists of certain parts and details and combinations of the same, as will be hereinafter fully described, and then pointed out in the claim.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all, the figures.

Figure 1 is a side elevation of the improvement as applied for cooling milk, showing the milk-tank in section. Fig. 2 is a like view of the same as applied for heating purposes. Fig. 3 is a plan view of the coil of pipe. Fig. 4 is an end view of the same; and Fig. 5 is a transverse section of part of the improvement onthe line 90 0c of Fig. 1.

The improvement is provided with a series of pipes A, placed parallel and connected with each other at their ends by elbows B, so as to form a coil of pipe 0. The several pipes A are held in place on the clip-plates D and D by means of staples E, passing over the pipes A and secured in the clip-plates D and D.

011 the plates D D are secured the upwardly-extending rods F and F, respectively connected with the ends of the ropes G and G, extending upward and passing over pulleys H H, suspended from the ceiling of a room. The ropes G and G then extend horizontally and pass over pulleys H and H respeetively, from which the ropes extend downward, carrying on their lowerends the counter-weights I and I, sufficiently heavy to. fully counterbalance the coil of pipe 0.

One end of the coil is connected by an elbow with a pipe J, connected by a flexible pipe K either with the cooling-pipe L, having a valve N, or with the steam-pipe O, carrying the valve P. The other end of the coil of pipe 0 is connected with an upwardlyextending pipe Q, having a horizontal extension Q, through which the cooling medium can be discharged, or which is connected bya flexible pipe R with a steam-outlet pipe S. The coil of pipe 0 is of such dimensions as to fit into a tank T, holding the milk or other liquid to be cooled.

The device is used as follows: When it is desirable to cool milkor other liquid, the latter is placed in the tank T, in which the coil of pipe C is held, as illustrated in Fig. 1, said coil of pipe being in the bottom of the tank. The inlet-pipe J is then connected by the flexible pipe K with the pipe L, connected with a suitable source of cold-water supply, so that when the valve N is opened cold water passes through the flexible pipe K and the pipe J into the coil of pipe 0 and circulates through the same, and then passes out through the pipes Q and Q, which latter discharges on the outside of the tank T. The milk or other liquid contained in the tank T is thus cooled by the circulation of cold water through the coil of pipe C.

When it is desirable to use the device for heating purposes, I disconnect the flexible pipe K from the cold-water-supply pipe L, then pull on the ends of the ropes G and G, so that the coil of pipe C is raised out of the tank T and suspended in the room by the counter-weights I and I. The flexible pipe K is then connected with the steam-supply pipe O, connected with a boiler or other source of steam-supply. The branch pipe Q is connectedby the flexible pipe R with the pipe S, which serves as a-return-pipe for the steam to the boiler. Now when the valve P is opened the steam passes through the coil of pipe 0, thus radiating heat into the room in which it is located and thereby heating the same.

It is understood that the device is principally used for cooling milk delivered in a heated condition to the factory, so that cream is raised in a very short time and the milk is made into cheese in the same tank while fresh and sweet.

When the device is suspended, as before described, and connected with a steam-supply, the room in which the device is located is heated during cold weather.

Having thus fully described my invention, I

claim as new and desire to secure by Letters Patent 111 a combined heater and cooler, the 00111- bination, with the coil of pipe 0, provided with the clip-plates I) D, the pipes J Q, secured to the ends of the coil, and the flexible pipe K, connected to the pipe J, of the pulleys H H H 11, arranged above the coil, the rods F F, connected to the clip-plates, the ropes G G, secured to the said rods and passing 10 over the pulleys, and the weights I I on the ends of the ropes, substantially as herein shown an d described.

JOHN W. WAGNER. \Vitnesses:

DAVID WILLIAMS, BETTIE C. W ILLIAMS, 

